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In a geometric sequence, t4=5x-11, t5=x+5, and t6=x-1. Find the sum(s) of the infinite series if it (or they) exsit(s).
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Nov 6, 2018
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In a geometric sequence, t4=5x-11, t5=x+5, and t6=x-1. Find the sum(s) of the infinite series if it (or they) exsit(s).
Mathematics
high-school
Emiel
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We have solutions ,
Use r, and the t4 value, to go backwards and find t1, which will tell you the "a" value. (There will be two choices.)
Can you find the Sum?
Sum = a1/ (1-r)
Ahsan Mahboob Shah
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Nov 11, 2018
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Ahsan Mahboob Shah
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